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Technical details about Eldecalcitol, learn more about the structure, uses, toxicity, action, side effects and more

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2D Structure
1. Also known as: Edirol, Ed-71, 104121-92-8, 2-(3-hydroxypropoxy)-1,25-dihydroxyvitamin d3, I2jp8ue90h, (1r,2r,3r,5z)-5-[(2e)-2-[(1r,3as,7ar)-1-[(2r)-6-hydroxy-6-methylheptan-2-yl]-7a-methyl-2,3,3a,5,6,7-hexahydro-1h-inden-4-ylidene]ethylidene]-2-(3-hydroxypropoxy)-4-methylidenecyclohexane-1,3-diol
Molecular Formula
C30H50O5
Molecular Weight
490.7  g/mol
InChI Key
FZEXGDDBXLBRTD-AYIMTCTASA-N
FDA UNII
I2JP8UE90H

Eldecalcitol (ED-71), a vitamin D analog, is a more potent inhibitor of bone resorption than alfacalcidol in an estrogen-deficient rat model of osteoporosis. Eldecalcitol, effectively and safely increased lumbar and hip bone mineral density (BMD) in osteoporotic patients who also received vitamin D3 supplementation.
1 2D Structure

2D Structure

2 Identification
2.1 Computed Descriptors
2.1.1 IUPAC Name
(1R,2R,3R,5Z)-5-[(2E)-2-[(1R,3aS,7aR)-1-[(2R)-6-hydroxy-6-methylheptan-2-yl]-7a-methyl-2,3,3a,5,6,7-hexahydro-1H-inden-4-ylidene]ethylidene]-2-(3-hydroxypropoxy)-4-methylidenecyclohexane-1,3-diol
2.1.2 InChI
InChI=1S/C30H50O5/c1-20(9-6-15-29(3,4)34)24-13-14-25-22(10-7-16-30(24,25)5)11-12-23-19-26(32)28(27(33)21(23)2)35-18-8-17-31/h11-12,20,24-28,31-34H,2,6-10,13-19H2,1,3-5H3/b22-11+,23-12-/t20-,24-,25+,26-,27-,28-,30-/m1/s1
2.1.3 InChI Key
FZEXGDDBXLBRTD-AYIMTCTASA-N
2.1.4 Canonical SMILES
CC(CCCC(C)(C)O)C1CCC2C1(CCCC2=CC=C3CC(C(C(C3=C)O)OCCCO)O)C
2.1.5 Isomeric SMILES
C[C@H](CCCC(C)(C)O)[C@H]1CC[C@@H]\2[C@@]1(CCC/C2=C\C=C/3\C[C@H]([C@H]([C@@H](C3=C)O)OCCCO)O)C
2.2 Other Identifiers
2.2.1 UNII
I2JP8UE90H
2.3 Synonyms
2.3.1 MeSH Synonyms

1. 2-(3-hydroxypropoxy)-1,25-dihydroxyvitamin D3

2. 2-(3-hydroxypropoxy)calcitriol

3. 20-epi-1alpha,25-dihydroxy-2beta-(3-hydroxypropoxy)vitamin D3

4. 20-epi-ed-71

5. 20-epi-eldecalcitol

6. Ed 71

7. Ed-71

2.3.2 Depositor-Supplied Synonyms

1. Edirol

2. Ed-71

3. 104121-92-8

4. 2-(3-hydroxypropoxy)-1,25-dihydroxyvitamin D3

5. I2jp8ue90h

6. (1r,2r,3r,5z)-5-[(2e)-2-[(1r,3as,7ar)-1-[(2r)-6-hydroxy-6-methylheptan-2-yl]-7a-methyl-2,3,3a,5,6,7-hexahydro-1h-inden-4-ylidene]ethylidene]-2-(3-hydroxypropoxy)-4-methylidenecyclohexane-1,3-diol

7. 1alpha,25-dihydroxy-2beta-(3-hydroxypropoxy)vitamin D3

8. Ed 71

9. (5z,7e)-(1r,2r,3r)-2-(3-hydroxypropoxy)-9,10-seco-5,7,10(19)-cholestatriene-1,3,25-triol

10. 1alpha,25-dihydroxy-2beta-(3-hydroxypropoxy)cholecalciferol

11. (1r,2r,3r,5z,7e,14beta,17alpha)-2-(3-hydroxypropoxy)-9,10-secocholesta-5,7,10-triene-1,3,25-triol

12. 1alpha,25-dihydroxy-2beta-(3-hydroxypropoxy)vitamin D3 / 1alpha,25-dihydroxy-2beta-(3-hydroxypropoxy)cholecalciferol

13. Eldecalcitol [inn]

14. 2-(3-hydroxypropoxy)calcitriol

15. Eldecalcitol [inn:jan]

16. Unii-i2jp8ue90h

17. Hy-a0020

18. Edirol (tn)

19. Eldecalcitol (jan/inn)

20. Eldecalcitol [mi]

21. Eldecalcitol [jan]

22. Eldecalcitol [mart.]

23. Eldecalcitol [who-dd]

24. Gtpl2783

25. Schembl5457151

26. Chembl4297608

27. Chebi:73927

28. 2beta-(3-hydroxypropoxy)calcitriol

29. (1s,2s,3s,z)-5-((e)-2-((1r,7ar)-1-((r)-6-hydroxy-6-methylheptan-2-yl)-7a-methylhexahydro-1h-inden-4(2h)-ylidene)ethylidene)-2-(3-hydroxypropoxy)-4-methylenecyclohexane-1,3-diol; Eldecalcitol

30. Ex-a5554

31. Zinc3934328

32. Ct-081

33. Lmst03020477

34. Akos025312299

35. Cs-0363

36. Db05295

37. 9,10-secocholesta-5,7,10(19)-triene-1,3,25-triol, 2-(3-hydroxypropoxy)-, (1alpha,2beta,3beta,5z,7e)-

38. Ac-26354

39. D07578

40. 1alpha,25-dihydroxy-2beta-(3-hydroxypropoxy)-cholecalciferol

41. (1r,2r,3r,5z,7e)-2-(3-hydroxypropoxy)-9,10-secocholesta-5,7,10-triene-1,3,25-triol

42. (5z,7e)-2.beta.-(3-hydroxypropoxy)-9,10-secocholesta-5,7,10(19)-triene-1.alpha.,3.beta.,25-triol

43. Ed9

2.4 Create Date
2006-07-28
3 Chemical and Physical Properties
Molecular Weight 490.7 g/mol
Molecular Formula C30H50O5
XLogP34.3
Hydrogen Bond Donor Count4
Hydrogen Bond Acceptor Count5
Rotatable Bond Count10
Exact Mass490.36582469 g/mol
Monoisotopic Mass490.36582469 g/mol
Topological Polar Surface Area90.2 Ų
Heavy Atom Count35
Formal Charge0
Complexity784
Isotope Atom Count0
Defined Atom Stereocenter Count7
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count2
Undefined Bond Stereocenter Count0
Covalently Bonded Unit Count1
4 Drug and Medication Information
4.1 Drug Indication

Investigated for use/treatment in osteoporosis.


5 Pharmacology and Biochemistry
5.1 MeSH Pharmacological Classification

Bone Density Conservation Agents

Agents that inhibit BONE RESORPTION and/or favor BONE MINERALIZATION and BONE REGENERATION. They are used to heal BONE FRACTURES and to treat METABOLIC BONE DISEASES such as OSTEOPOROSIS. (See all compounds classified as Bone Density Conservation Agents.)


5.2 Mechanism of Action

Eldecalcitol [1a,25-DIHYDROXY-2-(3-hydroxypropoxy)vitamin D3] is an analog of 1a,25-dihydroxyvitamin D3 [1,25(OH)2D3], bearing a hydroxypropoxy residue at the 2b position. Eldecalcitol is also effective in increasing bone mass and was able to enhance bone strength in rodents. It binds to the vitamin D receptor (VDR) with less affinity but binds to vitamin D-binding protein with higher affinity than 1,25(OH)2D, showing a long half-life in plasma.


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